1.
Find the value of
c
that makes
x
2
+ 16
x
+
c
a perfect square.
A.
8
B.
64
C.
-64
D.
16
Hint
2.
Find the value of
b
that makes
x
2
+
bx
+ 36 a perfect square.
A.
324
B.
-12, 12
C.
6
D.
12
Hint
3.
Solve
x
2
- 4
x
+ 1 = 0 by completing the square.
A.
1, 3
B.
C.
D.
Hint
4.
Solve
x
2
– 8
x
+ 16 = 13 by taking the square root of each side.
A.
4
B.
-4
C.
2
D.
-2
Hint
5.
Solve 0.25
x
2
– 7
x
– 15 = 0.
A.
{4, 30}
B.
{3, 15}
C.
{–2, 30}
D.
{–5, 3}
Hint